A device can include a first housing that includes a first thickness; a second housing that comprises a second thickness; and a hinge assembly that couples the first and second housings where the hinge assembly includes two hollow axles operatively coupled to the second housing; a coupling mechanism that couples the two hollow axles; two axles, each received by a respective bore of one of the hollow axles, operatively coupled to the first housing; and a coupling mechanism that couples the two axles.